Home / 42,679,540-64,019,474.16-10,331,389.60

Finding the Fourth Proportional to 42,679,540, 64,019,474.16 and 10,331,389.60

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Solution

The fourth proportional to 42,679,540, 64,019,474.16 and 10,331,389.60 is: 15,497,124.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,679,540 : 64,019,474.16 = 10,331,389.60 : x
  2. Step 2: Convert to fraction form
    42,679,540/64,019,474.16 = 10,331,389.60/x
  3. Step 3: Cross multiply
    42,679,540x = 64,019,474.16 × 10,331,389.60
  4. Step 4: Simplify right side
    42,679,540x = 661,410,129,534,092.62
  5. Step 5: Solve for x
    x = 661,410,129,534,092.62/42,679,540
  6. Step 6: Final answer
    x = 15,497,124.14

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.